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<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>

    <script>
         var arr = [{ label: '男', value: 1 , }, { label: '女', value: 0 },{six:"男", age:15}]
        // const obj = {}
        // function f(arr) {
        //     arr.forEach(item => {
        //       obj[item.value]=item.label
        //     })
        //     // 写代码，得到
        //     return  obj
        // }
        // var obj2 = f(arr);
        // console.log(obj2)

 // obj2 = {'1': '男'， '0': '女'}

        const obj = {}
        function f(arr) {
            arr.forEach(item => {
                const arr1 = []
                for (let key in item) {
                    arr1.push(item[key])
                }
                obj[arr1[1]]=arr1[0]
            })
            // 写代码，得到
            return obj
        }
        var obj2 = f(arr);
        console.log(obj2)
//  // obj2 = {'1': '男'， '0': '女'}
    </script>
</body>

</html>